3421678 has 16 divisors (see below), whose sum is σ = 5586336. Its totient is φ = 1562400.

The previous prime is 3421669. The next prime is 3421679. The reversal of 3421678 is 8761243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 3277.

It is an arithmetic number, because the mean of its divisors is an integer number (349146).

Almost surely, 2^3421678 is an apocalyptic number.

3421678 is a deficient number, since it is larger than the sum of its proper divisors (2164658).

3421678 is a wasteful number, since it uses less digits than its factorization.

3421678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its digits is 8064, while the sum is 31.

The square root of 3421678 is about 1849.7778244968. Note that the first 3 decimals coincide. The cubic root of 3421678 is about 150.6883621441.

It can be divided in two parts, 34 and 21678, that added together give a palindrome (21712).

The spelling of 3421678 in words is "three million, four hundred twenty-one thousand, six hundred seventy-eight".